I listened to Radio Luxembourg my last two years in Germany, when I was at Spangdahlem AB. My morning drive was in German, afternoons had British pop music.
Radio Luxemburg would play the tunes that BBC banned or refused to play. A real treat was to hear something from the Beach Boys instead of the British philharmonic and Petula Clark.
Being closer to Luxembourg City, you probably got Radio Luxembourg better than I did, living in Saarbrücken. I would occasionally listen to it and enjoy tunes like Don't Let Him Touch You by the Angelettes or Is This the Way to Amarillo? by Tony Christie, which scored in the UK and Europe but failed to chart Stateside.
I also listend to the Armed Forces Network (AFN) station in Kaiserslautern, which blasted Southwest Germany with American Top 40 hits.